Table 3 T-test results for sealant energy dissipation before and after aging.

From: Experimental study on the low-temperature performance and evaluation methods of crack sealants for asphalt pavements in seasonal frozen regions

Paired variable

Sample size

Mean before aging(J/m2)

Mean after aging(J/m2)

Standard deviation before aging

Standard deviation after aging

Paired difference

(Mean ± SD)

t-value

df

P

Before and after aging

8

6690.7

3437.79

3707.98

1559.37

3252.909 ± 2148.606

2.941

7

0.0217 < 0.05

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